Bernie is a good example of the alternative approach. I personally don't think he's radical enough, but he promises people things and makes people feel listened to. If you can establish a two-way street where people feel seen and heard, they will start to believe you again when you show them numbers. Of course you can see the response of the Democratic party to progressives like Bernie and AOC. The democratic party isn't going to win until they abandon the neoliberal technocrat schtick, literally nobody likes it. (also who knows if we will even have elections anymore so whatever)